What does 飛行 mean?
飛行 is a Japanese noun meaning “aviation, flight” in English. It is written as 飛行 in kanji, ひこう in hiragana, and hikou in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
彼女は初めての飛行にたいへん神経質になっていた。
She was quite nervous about her first flight.